Electrical permutation-lock system.



p PATENTED JULY 21, 1908. H. T. GLEARY.

ELECTRICAL PBRMUTATION LOCK SYSTEM.

APPLICATION FILED APR. 10.1908.

3 SHEETS-SHEET 1.

m Inte ia'oni 5% V- Q 2 No. 893,902. PATENTBD JULY 21, 1908.

H.-"I. GLEARY. I

ELECTRICAL PERMUTATION LOCK SYSTEM.

APPLICATION FILED APR. 10.1908.

8 SHBETS-SHEET 2.

I; Invg r.- @fi i KM 2% PATENTED JULY 21, 1908. H. T. CLBARY. ELECTRICAL PBRMUTAT'ION LOCK SYSTEM.

APPLICATION FILED APR. 10.1908.

JVLVQ 3 SHEETS-SHEET 3.

In ven' r:

1 I 1 l I I I I l I 4 r q v 1 I l I l I II M WM hmh f 'An electrically releasable lock 1 is mounted.

' V contains an electric battery 3 and a spring.

HENRY T. CLEARY, OF ST. LOUIS, MISSOURI.

ELECTRICAL PEBMUTATION-LOGK SYSTEM.

. Specification of Letters Patent.

Application filed April 10, 1908. Serial No. 426,198.

Patented July 21, 1908.-

- To all whom it may concern:

Be it known that I, HENRY T. CLEARY, a citizen of theUnited States, and a resident of the city of St. Louis and State of Missouri, have invented a new and useful Improvement in Electrical Permutation-Lock Systems, of which the following is. a specification.

My invention relates to electric permutation lock systems and-has for its principal objects to provide for the easy changing of the combination; to secure simplicity of construction and cheapness in the installation of such a system; to provide for adapting a permutation lock system to any number of doors; and to secure other advanta es hereinafter described and claimed.

t consists principally in the arrangement of arts hereinafter described and claimed.

iii the accompanying drawings, which form part of this specification, and wherein like symbols refer to like parts wherever they occur, Figure 1 is a diagrammatic view of a system showing one embodiment of my invention having two locks in the system and having the circuit. closers for the loops connecting the first and second switch points of I the switches, those for the loops containing the locks and those for the loops containing thealarms, electrically actuated; Fig. 2 is a diagrammatic view-of a system showing another embodiment of my inventionin which said circuit closers are mechanically actuated; Fig. 3 is a diagrammatic view of the embodiment of my invention shown in Fig.

2, and having two cks in the system.

in position to lock the door N of a house, safe or other structure. ally connected tofa wire loop 2. Said loop 2 retracted armature tof an electromagnet 5. Mounted ad'acent to the-terminals of said 100 are a p urality of three point switches a, E, c, d. Two points 6, 7 of each of said switches are electrically connected through a I loop 8, 9, 10, 11 containing a spring retracted circuitcloser a 6, 0 d -The third point 12 of the first switch a and the backstop 13 of the first oint 6 of said first switch a are electrical connected to said first mentioned loop 2. he forestop' 14 of eachthird switch point 12 is electricallyiconnected to the backstop 15 of the second switch point 7 of the corresponding switch and to the backstop 13 of the first switch point 6 of the next suc- Said lock 1 is electric cessive switch and to the third switch point\ containing an electric battery and the electromagnet 5 arranged to actuate said armature 4. Having one of its terminals electrically connected to said first "mentioned loop 2 and its other terminal electrically connected to the forestop 21 of said armature is a loop 22 containing an electrically actuated alarm y closed by said armature 4 and the ortion of said first mentioned loop 2 include between the terminals of said last mentioned loop 22 constitute a closed circuit containing said first mentioned electric battery 3.

Mounted in position to actuate respectively'the circuit closers a b c d are a lurality of electromagnets 23 24, 25, 26. aid

'electromagnets 23, 24, 25, 26 are electrically connected in multiple to a wire 27 common to a plurality of 100 s containing an electric battery 28. Electrically connected to each of said electromagnets 23, 24, 25,26 is a second wire 29, 30, 31, 32. Said second wires 29, 30,31, 32 when separately connected to said common wire 27 constltute as many separate loops as there are electromagnets '23, 24, 25, 26, all however containing a common electric battery 28. Said last mentioned loops extend to a oint .in the wall preferably near the door At this terminal point of said loops containing the wires Said last mentioned loop 22 when 27, 29 30, 31,32, a. series of ush buttons Y extend throughholes provi ed therefor in the wall. There are as man 7 x as there are'switches a b c and one addiush buttons Y' tional pushbutten .33 for operating the restoring circuit hereinafter described. All of said push buttons'Y are connected on their inner ends to the wire 27, common to said loops and are arranged to be brought by their. manipulation into contact withthe second wire 29, 30, 31, 32 of said loops respectively.

On the outside faces'of said push buttons, Y

are suitable letters or characters, for instance A B C D and the like. The restoring circuit push button 33 extends through a hole, in said wall adjacent to. said operating push button Y. Having terminals at a oint adjacent to said restoring circuit push utton 33 is a restoring circuit 34. Said restoring circuit 34 contains an electric battery 35 and a plurality of electromagnets 36, 37, 38, 39. Said electromagnets are mounted in positions to open said circuit closers a b 0 d respec- This embodiment of my invention can be applied to a plurality of locks without increasing the number of switches a b c d or the number of loops 8, 9, 10, 11 connecting the first and second switch POiIllDSzG, 7 of said switches respectively. In this case there are a plurality of loops 2 each electrically connected to one of said locks 1, and containing a spring retracted circuit closer X Y and all being electrically connected in multiple to said first mentioned electric battery 3 and said first mentioned armature 4 and having common terminals.

Preferably there is an additional electric bell X Y for each additional lock, in which case, there are a plurality of alarm'loops 22 each containing an electric bell X Y and a spring-retracted circuit closer X Y and all having incommon the terminals and connections hereinbefore described for the single alarm loop. Each lock loop 2 and-the corresponding alarm loop 22 have a circuit closer X Y in commonwhich is preferably the armature of an electromagnet. Mounted in position to actuate said circuit closers X Y respectively are a plurality of electromagnets 43, 44. Said electromagnets 43, 44 are electrically connected'in multiple to the wire 27 containing the battery 28 and having connectedthereto in multiple the electromagnets 23, 24, 25, 26. Said electromagnets 43, 44 are respectively connected to, the wires 45, 46. To each of said wires 45, 46 is connected a set of push buttons X, Y. There are as many sets of push buttons X, Y as there are locks. In this case each of the second wires 29, 30, 31, 32 which are electrically connected to the electromagnets 23, 24, 25,26, respectively, has as many terminals as there are sets of push buttons X, Y, and the arrangement of the respective sets of terminals and push buttons X, Y with respect to each other is the same as that hereinbefore described for single sets of said terminals and push buttons. restoring circuit contains as many additional electromagnets 47 ,48 as there are additional locks. Said additional electromagnets are mounted in position to open the circuit closers X Y. The restoring circuit is also provided with additional terminals, an additional push button 33 and an additional circuit closer 42 In this case the through openings made for their passage in the wall and terminate in a cabinet 49 fixed to the outside of said wall. is preferably at some point adjacent to the door. Each of said loops 8, 9, 10, is normally open at a point within said cabinet 49. Adjacent to each of said openings is a pivotally mounted arm 50. Said arm 50 has an upwardly extending lug 51 thereon and is connectedby a spring 52 to thewall of the cabinet 49. The tendency of said spring 52 is'to bring said arm 50 into contact with the terminals of its corresponding loop 8, 9, 10. Adjacent to said arm 50 is a bell crank 53 hav- Said cabinet 49 ing 9; lug 54 thereon. Said lug 54 normally push buttons are marked on their outer ends with suitable letters or characters. Mounted in the wall of said cabinet in a position to bear against each of said arms 50 is a restoring pin. Said restoring pins 55 also extend thro'ughholes provided therefor to the outside of the wall of the cabinet 49. Obviously, this form of the means for closing the loops 8, 9, 10 may be used when the system comprises a plurality of locks. In this case a branch lock loop 2, a cabinet 49, a set of loops 8, 9, 10 and the means for closing said loops, and a branch restoring circuit and the restoring devices connected therewith are rovidedfor each lock 1. Each of said branch lock loops 2 extends into thecorresponding cabinet 49 and is normally open at some point therein. The devices for closing and restoring said branch lock loo s are the same as those above described for c osing and restoring the loops 8, 9, 10. in this case also to have an additional electric bell X Y for each additional lock. In order that each of said electric bells X Y may be connected only to the series of operating devices adjacent to its corres onding lock 1, a plurality of branch alarm oops 56 connect each of said electric bells X Y to said operating devices respectively. Each of said branch alarm loops 56 is normally open at a point adjacent to the pivoted arm 50 of its corresponding operating device and It is preferable the e armatures b is arranged to be closed by the operation of said operating device and restoredbythe same restoring means.

The operation of my system is as follows: In Fig. 1 two locks are shown connected to the system. Assuming the push buttons adjacent to each lock to be lettered alphabetically from a. to d beginning on the left and the'switches to be similarly lettered but beginning on the right, the system is represented as set for the combination I), d, that is, the second and fourth switches b, d are set in contact with their, respective back stops and all other switches are set in contact with their respective foresto s. Suppose it isdesired to open the door Li Pressing the push buttons 1) and d in the set X brlngs said push buttons into contact with the terminals of the respective loops, 9, 11, with 'which they are arranged to cooperate. By this operatioma closed circuit is estab lished beginnin at the battery 28 passing through the e ectromagnets 24, 26, the wires 30, 32, then through the wire 45, the electromagnet 43, the wire 27 and back to the battery 28. Thereupon the electric current passing fromthe battery 28 energizes ectromagnets 24, 26, 43, whereby the 2 w are brou ht into contact with their respective bac stops thereby closing the adjacent openings in the loops 9,

' 11, and inthe branch lock loop electrically connected to the lock of the door at Mand in thebranch alarm loop containin the electric, bell X By this operation a c osed circuit is established beginning at the battery 3, passing through the armature 4 the second 7 from the batter door at MunI switch point 7 of the last switch d, the loop 11, the first switch point 6 of the last switc d; the third switch point 12 of the last switch d, the second switch oint 7 'of the second switch I), the loop 9, t e first switch point 6 of the: second switch I), the third switch oint 12 'of the first switch a, the branch ock loop containingthe lock of the door at M, the said lock and back to the 'battery 28. Thereupon the current passing 3 actuates the lock of the ocking the same. In the course of the movement of said door the circuit closer 42 thereon passes across the terminals 40, 41 of the restoring circuit 34 minal 41, thence back tending from the terminal 41, through all of thereby establishing a closed circuit beginning at thebattery 35, passing through the .wire extending therefrom to the terminal 40, through the circuit closer 47. and the teralong the wvire exthe electromagnets in said restoringcircuit 34 in succession and then back to the battery w 35. Thereupon the current passing from said battery 35energizes theelectroma nets 37., 39, 43in said resto .circuit 34 w ereby the circuit closersb', X are restored to their normal positions. Said restoring nected to the lock of the ers would be setas the second I),

button a inthe set X brings said ush button into contact with the terminal 0 the loop 10 with which said push button -0 is arranged to cooperate, thereby establishing a closed circuit beginning at the battery 28 passingthrough the electromagnet 25," the wire' 31, j the wire 45, the electromagnet 43, and back to the battery 28. Thereupon the electric current passing from the battery 28 energizes the electr'omagnets 25, 43 whereby the armatures c X are brought into contact with their respective backstops thereby closing the adjacent openings in the loop 10.

and in the branch lock loo electricallyvconoor at M and the branch alarm loop containing the electric bell X By this operation a closed circuit is established beginnin at the battery 20 passing through the e ectromagnet 5, the second switch point '7 of the third switch 0, the loop 10, the firstswitch point 6 of the third switch a and back to t e battery 20. Thereupon the current passing from the battery 20 energizes the electromagnet 5 whereby the armature 4 is brought into contact with its forestop. By' this operation a closed circuit is established beginning at the battery 3, passing through the electric bell X the branch 100 22, containing said bell, the circuit closer therein, and back to the battery 3. Thereupon the electric current passin from the battery 3 actuates the electric bel X ringing same. Since in the course of this operation the lock loop 2 remains open, the lock remains locked.

In the arran ement of my system shown in Figs. 2 and-3, t e switches are represented as being set for the combination a, c; thatis, the first and third switches a/ c are set in'contact with their respective backstops and the sec- 0nd switch I) is set in contact with its forestop. If there were more switches, all-oth- With the switches so set pressing the first and third push buttons a 0 moves their corresponding ell cranks 53 away, from contact with the lugs 51 on the respective arms 50. Whereupon, the s rings 52 move said arms into contact wit the adjacent terminals of the loops 8, 10. In this case, any one of the arms 50 can be restored to its normal position by pressing the corresponding whereupon the lug 54 on e appro riate bell crank again engages the lug 51 on t ,e arm 50.

The rest of the o eration of the system is substantially as escribed for the arrangement shown in Fig. 1. If more-than one lock is connected to this arrangement of-the restoring pin 55, 123

7 system as'shown in Fig. 3, it will first be necother device. Obviously, also, my system' essary to press the push button, arraned to close the adjacent opening in the branc lock loop. In this case, press1ng any of the push buttons a, b, a will close the ad'acent opening in the correspondin branch 0 the alarm circuit. tiallythe same as for a sin le door.

The system obviously a mits of considerable modification without departin from my invention, and hence I do not wis to be. limited to the specific construction hereinbe-' fore described. For instance, instead of' three or four operating devices as shown in the drawings, any number may be used. Also instead of two doors as shown in Figs. 2 and 3, any number ofdoors may be connected to a single system. The bell may be a permanent alarm or it may be arranged to cease whenever the operating device which started it is restored. Also, a single bell could be used for any number of doors. The

alarm could. be in the house safe or other structure to which the system is attached, or

at police headquarters, or elsewhere. The

alarm could be a bell, whistle, annunciator or can be applied not only to doors, but also \wherever locks are used; as, for instance, to the drawers of a desk. Obviously, also,.the

I electric current instead ofbeing supplied from batteries might come from any. other source of electrical energy whether within or without the-structure in which the system isinstalled. The electromagnets in the restoring'circuit might be connected either in series orin multiple and arranged to restore the respective circuit closers to their normal positions either singly or simultaneously. Supose the system is installed in a boarding house. No keys need be provided for the guests and yet any guest'by simplly knowing the combination can get into t e house at anytime. In order to provide against the acts of any departed guest whose honesty may be doubted, it is only necessary to v v This statement would apply with e ual force to former servants. n a hotel, if the system were conchange the combination.

nected to the locks of the guests rooms, it

lock. the door would immediately betray his presence.

What I claim is: v 1. An electric permutation lock system comprising a loop containing-a source of elec- Otherwise, t e operation is substan-' trical energy, an electrically releasable lock,- and the armature of an electromagnet, a second loop containing a source of electrical energy and an electromagnet arranged to cooperate with said armature and having a lurality of pairs of terminals, a plurality of oops each having a manually controlled cir-.

cuit closer therein and terminating in a permutation switch, said switches being ranged to electrically connect in series any predetermined set of said last mentioned oops to saidifirst mentioned loop and to electrically connect in multiple the remainder of said last mentioned loops to said second loop. 2.. An electric permutation lock system comprising a loop containing a source of electrical energy, an electrically releasable lock and thearmature of an electromagnet, a second loop containing a source of electrical energy and an electromagnet arranged to cooperate with said armature and having a plurality of pairs of terminals, a plurality of oops each having a manually controlled circuit closer therein and terminating in a permutation switch, said switches being arranged to electrically connect in series any predetermined set of said last mentioned loops to said first mentioned loop and to electrically connect in multiple the remainder of said last mentioned loops to said second loop, and another loop containing an electrically actuated alarm and having one of its terminals electrically connected to said first mentioned 'loop' and its other terminal electrically connected to the forestop of said armature.

- 3. An electric permutation lock system com rising a loop containing a source of electrica energy, an electrically releasable lock and the armature .of an electromagnet, a second loop containing a source of electrical energy and an electromagnet arranged to cooperate with said armature and having a lurality of pairs of terminals, a plurality of oops each'having a manually controlled circuit closer therein and terminating in a permutation switch, said switches being arranged to electricallyconnect in seriesv any redetermined set of said last mentioned oops to said first mentioned loop and to elec-.

trically connect in multiple the remainder of said last mentioned loops to said second loop, and means for restoring said system to .its normal position, said restoring means comprising a normally open circuit containing a source of electrical energy, a plurality of electromagnets, and means for closing said circuit. p

4..An' electric permutation system comprising a loop containing a source'of electrical energy, an; electrically releasable lock, and the armature of an electromagnet, a second containing a source of electrical energy/ I an .an electromagnet arranged to 006 erate' with-said armature and having a plura 'ty of pairs of'terminals, a plurality of loops each therein and terminating in at permutation switch, said switches being arrangedto electrically connect in series any predetermined setof said last mentioned loops to said first mentioned loop and to electrically connect in multiple the remainder of said last mentioned loops to said second 100 and means of-re-- storing said system to its normal position, said restoring means comprising a normally open circuit containing a source of electrical energy, a plurality of electro magnets, and means for closing said circuit, said closing means comprising an arm fastened to the closure wit which said system cooperates and arranged to be brought into contact with terminals of said circuit by the opening of said closure. i

5. An electric permutation lock system comprising a loop containing a source of electrical energy, an electrically releasable lock, and the armature of an electromagnet,

a second .loop containing a source of electrlcal energy and an electro magnet arranged to cooperate with said armature and havlng a plurality of pairs of terminals, a plurality of loops each aving a manually controlled Ccircuit closer therein and terminating in a permutation switch, said switches being arran ed to electrically connect in series any pre etermined set of said last mentioned oops to said first mentioned loop and to electrically connect in multiple the remainder of said last mentionedloo s'to said second loop, each of said manual y controlled circuit closers comprising the armature of an electro magnet and a loop containing a source of electrical energy, an electromagnet arranged to cooperate with said last men-' tione armature and a normally open manually optelrable switch.

6. electric permutation lock system comprising a plurality of normally open loops having common terminals and contam ng a common source of electricalenergy and a common armature of an electromagnet "and'each containing an electrically releasable lock and a manually controlled circuit closer another 100 containing a source of-electrical energy an an electromagnet arranged to cooperate with said armature and having a lurality of pairs of terminals, aplurality of oops each having a manually controlled cir l cuit; closer-therein'and terminating in a peri so tinned loo mutation switch-, said switches being arran ed to electrically connect in series any re etermined set-.ofi said last mentioned oops to the common terminals of said mentioned loops and to electrically connect ii -multiple the remainder of astmen-f wsaidla on bP- a 7.. An-je' ect;ri'c -pei'mutation lock system I comprising s pluralityef normally open 9. electric .comprlsmga lura p two points 0 each switch belng. electrically loops having common" and containing a common source of electrical energy and a common armature of an electroma at and each containing an electrically re eas able lock and a manually controlled circuit closer, another loop containing a source of electrical energy and an electromagnet ar-- nating in a permutation switch, said switches being arranged to electrically connect in series any predetermined set of said last mentioned loops to the common terminals of said first mentioned loop'sand to electrically connect in multiple the remainder of said last mentioned loops'to said second loop, and another plurality of normally open loops having common terminals all containing said first mentioned source of electrical energy and said armature and eachcontaining an electrically actuated alarm and a manually controlled circuit closer. I

8. An electric permutation lock system comprising a plurality of normally open loops having common terminals and containing a common source of electrical energy and a common armature of an electromagnet and each containing an electrically releasable lock and a manually controlled circuit closer,

another loop containing a source of electrical energy and an electro-magnet arranged to cooperate with said armature and having a lurality of airs of terminals, a plurality of lbops' each aving a manually controlled circuit/ closer therein and terminating m a permutation switch, said switches being arran 'ed to electrically connect 1n serles any pre etermined set of said last mentioned ops to the common terminals of said first .mentioned loops and to electricall connect in multiple the remainder of sa1d ast mentioned loops to said second loop, each of said -manually controlled circuit closers comprising the armature of an electromagnet and a loop containing a source of electrical energy, an electromagnet arranged to 006perate with said last mentioned armature and a normally open manually operable switch.

ermutation lock system 'ty of three point switches connected through-a normall 0 en loop containing a circuit closer, the t r point of the first switch and the backstop of the first point of the firstswi ch being electr cally connected to a loop con ainin an electrically. releasable lock, 8. source of e ectrical ener and the armature of an electromagnet, said armature being normally electrically con n'ectd to the forestop of one point of thelast switch and to the backstop of another-point of said last switch,- the forestop of each third switch point being electrically connected to nected to the ackstop o successive switch and the backstop of the second switch point of the corresponding switch and to the backstop of the first switch point of the next successive switch and to the third switch point of said next successive switch, the forestops of the first and second switch points of the several switches being electrically connected in multiple to a loop containing a source of electrical energy and an electromagnet arranged to actuate said armature, and means for operating individually said first mentioned circuit closers.

10. An electric permutation lock system comprising a plurality of three point switches two points of each switch being electrically connected through a normally 0 en loop containing a circuit closer, the thir point of the first switch and the backstop of the first point of the first switch being electrically connected to a loop containin an electrically releasable lock, a source of e ectrical energy and the armature of an electromagnet, said armature being normally electrically connected to the forestop of one point of the last switch and to the backstop of another point of said last switch, the forestop of each third switch point being electrically connected to the backstop of the second switch point of the corresponding switch and to the'backstop of the first switch point of thenext successive switch and to the third switch point of said next successive switch, the forestops of the first and second switch oints of the several switches being electrical y connected in multiple to a loop containing a source'of electrical energy and an electromagnet arranged to actuate said armature, and means for operating individually said first-mentioned circuit closers, said operating means comprising a plurality of circuits each containing a source 0 electrical energy, an electromagnet and a normally 0 en manually operable switch.

11. An e ectric permutation lock system comprising a plurality of three point switches two points of each switch being electrically connectedthrough a normally-open loop contaming a clrcuit closer, the t 'r point of the first switch and the backstop of the first point of the first switch being electrically connected to a loop containing anelectrically releasable look, a source of electrical energy and the armature of an electromagnet, said armature being normally electrically connected to the forestop of one point of the last switch and to the backstop of another point of said lastswitch, the foresto of each third switch oint bei'n 'electrica y conthe second switch point of the correspondinglswitchand to the ackstop of the first switc ppint of the next to t point of said next successive switch, the forestops' of the first and second switch points bf.

the several switches being electrically con e third switch nected in multiple to a loop containing 'a source of electrical energy and an electro magnet arranged to actuate said armature, means for op storing the system to its normal position.

12; An. electric permutation lock system comprisinga luralityof three ointswitches, two points 0 each switch being electrically connected through a normally 0 en loop conatining a circuit closer, the t ird point of the firstswitch and the backstop of the first point of the first switch being electrically connected to a loop containin an electrically releasable look, a source of e ectrical .energy and the armature of an electromagnet, said armature being normally electrically connected to the forestop of one point of the last switch and to the backstop of another point of said last switch, the forestop of each third switch oint being electrically connected to the bac stop of the second switch oint of the corresponding switch and to the 'ackstop ,of

the, first switch point of the next successive switch and to the third switch point of said next successive switch, the forestops of the first'and second switch oints' of the several switches being electrical y connected in multiple to a loop containing a source of electrlcal energy and an electromagnet arranged to actuate said armature, means forv operating individually said first mentioned circuit closers, and means for restoring the system to its normal position, said restoring means comprising a normally open circuit containing a source of electrlcal energy, a plurality of electromagnets, and the armatures of said magnets, and means for closing said last mentioned circuit.

r 13. An electric permutation lock system comprising a plurality of three oint switches, two points 0 each switch being electrically connected through a normally 0 en loop con taining acircuit closer, the thir first switch and the backsto of the first point of the first switch being e ectrically connected to a loop containing an electrically releasable lock, a source of electrical energy and the armature'of an electromagnet, said crating individually said firstmentioned circuit closers, and; means for repointof the armature being normally electrically connected to the'forestop of o'nepoint of the last switch and to the backstop of another point of said last switch, the forestop of each third switch oint bein electrically connected to the bac stop of t e second switch point of thecorresponding switch and to the backstop of the first switch oint of the nextsuccessive switch'and to the third switch point of said next successive switch, the forestops of the firstand second switch points of t e several switches being elec'trica y connected in multi le to a loop containing a source of electrical energy and an electromagnet arranged to actuate said armature, means for operatin individually said first mentioned clrcult c osers, and means for restoring the system toits normal position, said restoring means comfprising' an arm fastened to the which said system cooperatesclosure wit and arranged to be moved across the terminals of said last mentioned circuit by the opening of said closure.

14. An electric permutation lock system comprising a plurahty of three point switches, two'points of each switch being electrically connected through a normally open loop containing a circuit closer, the backstop of the first point of the first switch and the third point of the first switch being electrically connected to a loop containing an electrically releasable lock, a source of electrical en-' ergy, and the armature of an electromagnet, said armature being normally electrically connected to the forestop of one point of the last switch and to the back stop of another point of said last switch, the forestop of each third switch point bein electrically connected to the backstop o the second switch point of the correspondin switch and to the backstop of the first switc oint of the next successive switch and to t e third switch point of said next successive switch, the

orestop of the first and second switch pointsof the several switches being electrically connected in multiple to a loop' containing a source of electrical energy and anlelectromag net arranged to actuate said armature, and the forestop of said armature being electric- 'ally connected through an electrically actur'ated alarm to said first mentioned source of electrical. energiyl rand means for operating in-' dividually said st mentioned circuit closers. 15. electric permutation lock system comprising a plurality of three point, switches,

. two points of eachswitch beingv electrically 0nd switch oint of the corresponding switch connected through a normally open loop containing a circuit closer, the backsto of the first point of the first switch and t e third point of the first switch being electrically connected to a plurality of normally open loops, each containing a circuit closer, a source of electrical energy, an electrically releasable lock and the armature of an electromagnet, said armature bein normally electricallyconnected to the oresto point of the last switch'and to the acks'top of another ploint of said last switch, the forethird switch point bein elecstopof eac trically' connected to-the backstop of t 0 secand to the ackstop of the;first switch point of the next successive switch and to; the,

third switch point ofzsaid next successive of one 7 switch, the forestops of the first and second switch points of the several switches being electrically connected inmultiple toa loop containing a source of electrical energy and an electromagnet arranged to actuate said armature, an I ally said first mentioned and said second means for operating individumentioned circuit closers.

,16.,An electric permutation lock system comprising aplurality of three point switches, two points of each switch being electrically connected through a normally open loop containing a circuit closer, the backsto of the first point of the first switch'and t e third point of the first switch being electrically connected to a plurality of normally open loops, each containing a circuit closer, a

source of electrical energy, an electrically releasable lock, and the armature of an electromagnet, said armature being'norm'ally electrically connected to the foresto of one point of the last switch and to the hackstop of another oint of said last switch, the forestop of eac third switch point bein electrically connected to the backstopof ti 0nd switch point of the corresponding switch and to the backstop of the first switch point of the neXt successiveswitch and to the third switch point of said next successive switch, the forestops of the first and second switch points of the severalswitches being electrically connected in multi le to a loop containing a source of electrica energy and an electromagnet arranged to actuate said armature, and means for operating individually said first mentioned and saicLsecond-mentioned circuit closers, said operating means comprising a plurality of circuits each containing a source of electrical energy, anelectromagnet and a normally open manually operable switch.

'17. An electric permutation lock system comprisinga plurality of three oint switches,

two points of each switch being electrically connected through a normally 0 en' loop containing a circuit closer, the thir point of the first switch being electrically connected to a plurality of normally open loops each containing a-circuit closer, a source of electrical energy, an electricall the armature of an e ectro-ma net, said armature being normallyelectrica 1y connected to the forestop of one point of the last switch and to the backstop of another point of said last switch, the forestop of, each third switch pointbeing electrically connected to the back stop of the second switch point of the corresponding switch and to the back stop of the first switch point of the next successive switch and to the third switch point of said next successive switch, the forestops of the first and second switch oints of the several switches being electrica y connected in multiple to. a loop containing a source off-elecreleasable lock, and

trical energy and an electromagnet arranged mentioned, said second mentioned, and said to actuate said armature, and the forestop of last mentioned circuit closers. 10 said armatureibeing electrically connected to Signed at St. Louis, Missouri, this 4th day a plurality of normally open loops each conof April, 1908.

taining said first mentioned source of elec- HENRY T; CLEARY. trical energy, a normally open circuit closer Witnesses: and an electrically actuated alarm, and R. D. WHITE,

means for operating individually said first J. B. MEGOWN. 

